Whoever Knows Please Help. My Macbook Pro Always Gets Kernel Panic...installing Vista

HI.
I'AM SENDING A POST HERE AFTER TRYING TO INSTALL WINDOWS VISTA ON MY MACBOOK PRO FOR 22TH TIME.

THE PROBLEM IS THAT MY MACBOOK PRO ALWAYS GETS KERNEL PANIC IN ACCIDENTAL MOMENT WHILE WINDOWS VISTA INSTALLING. I WILL HAVE TIME TO YOU TO SAY THAT I HAVE CHANGED MY 2 SO-DIMMS TWICE AND THE SAME THING IS HAPPENS. ALSO I'VE TRYIED WINDOWS VISTA BETA 2, RC1, RC2 AND ALL VERSION OF PARALLELS DESKTOP FOR MAC UNTIL THE NEW ONE BUILD 1966 AND ALL THE SAME. I CAN'T UNDERSTAND ANYTHING.......

I'M SENDING THE LOG OF KERNEL PANIC if that helps but i don't think so...

Wed Nov 1 17:36:02 2006
panic(cpu 1 caller 0x001414FE): zalloc: "kalloc.16" (14717696 elements) retry fail 3
Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x13f93938 : 0x128d1f (0x3c9540 0x13f9395c 0x131df4 0x0)
0x13f93978 : 0x1414fe (0x3ca24c 0x3c97b8 0xe09300 0x3)
0x13f939d8 : 0x12d994 (0x146ecb0 0x1 0x13f93a48 0x10)
0x13f93a08 : 0x12d9b3 (0x8 0x1 0x146ecb8 0x1000)
0x13f93a28 : 0x37dff8 (0x8 0x1 0x3fe9320 0x10)
0x13f93a48 : 0x946111 (0x8 0x1000 0x13f93a78 0x12d9b3)
0x13f93a98 : 0x9455ae (0x21a07000 0x400000 0x27a5640 0x0)
0x13f93ad8 : 0x94849f (0x21a07000 0x400 0x0 0x46)
0x13f93b28 : 0x947476 (0x41da584 0x18 0x0 0x198cc3)
0x13f93be8 : 0x947862 (0x41da584 0x13f93ec8 0x18 0x83)
0x13f93d48 : 0x9448c7 (0x41da584 0xc0185401 0x13f93ec8 0x4167af9d)
0x13f93d78 : 0x1ef2fd (0xd000000 0xc0185401 0x13f93ec8 0x81)
0x13f93db8 : 0x1e624b (0x13f93de0 0x297 0x13f93e18 0x1cfbe5)
0x13f93e18 : 0x1de0ef (0x41b9dec 0xc0185401 0x13f93ec8 0x81)
0x13f93e68 : 0x330295 (0x33a4440 0xc0185401 0x13f93ec8 0x33a97d0)
0x13f93e98 : 0x34e562 (0x33a4440 0xc0185401 0x13f93ec8 0x33a97d0) Backtrace continues...
Kernel loadable modules in backtrace (with dependencies):
com.parallels.kext.vmmain(2.2)@0x943000

Kernel version:
Darwin Kernel Version 8.8.1: Mon Sep 25 19:42:00 PDT 2006; root:xnu-792.13.8.obj~1/RELEASE_I386


so please help.......
i don't know what else sould i do....
I will fly outside from my window my laptop... I was disappointed