whenever i enter fullscreen mode it looks weird. is there no Parallels Tools when using Linux? like there is when i use Win XP
Nope.. no cool parallels tools for Linux. I've personally found linux support to work pretty well, you just can't drag & drop files (for obvious filesystem reasons) and can't copy/paste between the VM and host OS X. I run Ubuntu regularly, and have found the trackpad and two-finger scrolling to work better in Ubuntu then it does in XP. XP's drivers for the trackpad are crap... hopefully the next version of boot camp will have some major driver overhauls.
