Nexuiz became unplayably slow

[AnArKiSt]

Hello. Yesterday, I was using the Nexuiz 2.5 beta at 70 frames per second. When I was done, I shrunk my Windows Vista hard drive partition to create 20GiB of unallocated free space. I then restarted my computer, and booted with a Ubuntu 8.10 install CD to install Ubuntu to the newly unallocated space. The installation failed and gave me an error that reads "No install signatures found". I then restarted my machine, and booted into Windows Vista from my hard disk. I let my machine run for a bit to get the startup processes out of the way, then I ran Nexuiz 2.5 beta. The game took much longer than normal to load, and it crashed to the desktop when I tried to join an internet game. I restarted Nexuiz, but this time I used campaign mode. The game was running snail slow at approx 5-15 frames per second. I then tried Nexuiz 2.4.2, which also had the same problem. I could join an internet game, but sometimes when I attempted to do so, nexuiz just crashed. I then booted Vista into safe mode, uninstalled my video drivers, and installed the latest drivers for my video card, but that did not solve the problem. Everything else appears to be working fine. This problem occurs when using both Nexuiz glx and Nexuiz sdl. I use the absolute lowest graphics settings.

My System specs

AMD64 Athlon X2 1.9GHz Dual-Core Processer
3.00 GB RAM
ATI Radeon X1270 Intagrated graphics
Windows Vista 32 bit OS

Graphics Driver Provider: ATI Technologies Inc.
Graphics Driver Date: 2/3/2009
Graphics Driver Version: 8.582.0.0

Thanks in advance for any help you can give

-AnArKiSt

EDIT: I fixed it. I do not know what happened, but I redownloaded Nexuiz, and this new copy runs at normal speed.

[tundramagi]

Many drive resize programs don't support vista's version of NTFS. This includes unbuntu's install process.

[AnArKiSt]

*bump*

The issue came back, but this time reinstalling Nexuiz did not fix it. Somebody help me please! Neither my hardware, nor my drivers have changed since then. I am at a total loss over how to fix this, and I do NOT want to play World of Warcraft to cure my boredom. Thank you.