New files corrupted/"lost" partition

New files corupted/unusable and "lost" Parallels partition?

Last spring my 2006 MacBook with was doing the "reclaiming" space before turning off and after a half hour I got impatient and held down the power button to force the shutdown. Upon restarting and since my Parallels partition is inaccessible even though it's still there, and I get a variety of files corrupted like new photos I read from my camera card, files I download from the Internet like program upgrades or music files and my program icons "disappear" from the applications ribbon even though they're still In the app folder. I took it to the genious bar and they said it "might be" the ramm I installed three years ago is failing. Today I put the original ram back in and still have the same troubles. I did verify the disk and had to repair the permissions but still can't get these problems to stop. I also don't have access to a genius bar now nor do I have the os x disks or my other software disks to try any reinstalling. Any ideas will be appriciated!