Hello, and thanks for reading!

Please help me if you can, I'd appreciate it a lot!
I have mouse pointer problem with my iDeneb 1.3 installation. After quitting the screensaver my mouse pointer becomes very fast or something, so when I move it in a direction, it jumps all the way to the edge of the screen. I've read around the forum, that it's connected to the graphics card driver some way, but I was unable to fix it since. Also, the music playback is laggy while the mouse pointer jumps around. I don't really know what solution there is, but it's really getting annoying.

My system specs are:
Proc.: AMD Athlon 64 X2
Motherb.: GA-M52S-S3P (rev. 1)
Graphics: Gigabyte nVidia Gf8800GT 256Mb
Sound: ALC883
Chipset: nForce 430
There is an integrated nVidia Gf6100 on the motherboard also.

Once again, I'd appreciate every bit of help here! Thanks!