Right, since I downgraded from Vista = Thank god! UO has been running horrible sluggish, By this I mean the screen refreshes ever so slowly so its like immense slow down, It ran perfect in vista, it ran perfect in xp64. But in XPx86(32bit) its horrible!
Now after extensive testing, I seem to find that the reduce framerate option in UO does have an effect, but not much and is unplayable to say the least, I run at 1280x1024 resolution on a 17" monitor, which is the native resolution and I ran it the same on other versions of windows. If I set the resolution to anything lower than this (Cant go higher) It runs flawlessly, Also if I keep it at 1280x1024 and set the colours to 16bit instead of 32bit, It runs perfect.
It seems strange, the kingdom reborn client runs perfect regardless of the setting, My computers specs are as follows:
AMD 64 3500+
ATI Radeon x800 XT PE 256mb
1GB Ram (2gb next week)
500GB Hard Drive

I dont understand why, I can run top end games such as company of heroes/battlefield 2/stalker/half life 2/kingdom reborn, with no problems and settings on high, yet cannot run a 10 year old game.

I have tried numerous different things, different drivers, I went through the whole backlog of ATI drivers for upto a year ago, and tried each one which makes no difference, I have tried disabling every thing in the background that can be, apart from the things it wont let you terminate because they are required by windows. Its not my internet connection lagging me, as its always the same, my ping is only 34 on the server list, and It never lags in any other games or while downloading.
My second computer which is not half as good also running XP(32bit), I use for downloading runs the game fine, but I cannot play on that one.

I also cannot keep my desktop at 16bit because most games require it set at 32bit, that and my icons look like pixleated rubbish!

So does anyone know what the problem could be? All drivers are the newest as I always download the new drivers when I reinstall windows, which was about a week ago, and obviously I have done the graphics driver thing.
Help! I dont want to be stuck with the KR client just yet!

It's weird, we have almost the same system.

I just got Vista 64bits
I have AMD 64 3500+
ATI Radeon x800
2 GB RAM
600GB Hard Drive

I run the game on the highest resolution though. I had the same problem before, and it is a bit slow to be honest. Not sure what to say but.. yeah.

Hate weird problems like that

What kinda motherboard ya running on? Have you installed the latest motherboard drivers to?

Im running a Shuttle XPC SN95G5, updated to the newest bios, I also have the newest VIA drivers, and Nvidia nForce Drivers installed. No doubt it will be a box somewhere in a properties page that just needs to be unticked and it'll cure the problem knowing my luck, But knowing which box and where the box is - is the problem

I don't think you need the VIA drivers, as it's an Nforce chipset

Are you using UOAssist as well? If so, have you tried using the --reducecpu command in game? not sure if that'll help

Hrm....It's definatly odd, I can't think of anything that might help right now

I tend to run modified drivers for my machine, as opposed to the ones that come from the manufacturer.

I have an ATI card, but use the drivers from omegadrivers.net
I also use modified Nvidia nforce 3 drivers (Nvidia remix set) from http://www.nforcershq.com/forum/1-vt69656.html?start=0

Latest version is 11.15

They seem to be better than the standard set from Nvidia (Few bug fixes to, like LAN stuff)

I installed all those drivers you said adam, the omega drivers and the nforce ones, Hasnt made no difference though unfortunatly I also tried that command which doesnt make no difference either.

I have now upgraded to 2gb of Ram and the problem is still there Its when im in 32bit - when your running especially on a mount you run 3 spaces, it stops then runs 3 steps then stops etc etc, in 16 bit you can just run without stopping at all - if that makes sense. Any ideas?