Urgent Problem with R31

[nvvnravi]

I have R31 1.1 Mhz 758 RAM windows 2000 pro, 30 G HDD.
I am getting this problem when i am starting up my laptop.
================
intel (r) boot agent ver...
copyright....
pxe-e61: media test failure.check cable
pxe-M0f: existing intel PXE ROM.
Operating system not found
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I tried to boot up with wondows 200 floppy but no use after loading all the 4 floppyies blue screen comes.
i also tried IBM recovey diskette but it says it repaired the MBR successfully but again teh same problem.

what i did before this problem came up is i started windows in safe mode and ran symantec antivirus and Vcom fix-it utilities.
After closing the antivirus i got blue screen with some error message.

Then i restarted which triggered the chkdsk which i allowed .i saw that the chkdsk was at 0 not at all moving forward so i closed and again restarted . this time i saw the message above .
so i closed again and tried to restart again . this time it came up but stopped at chkdsk again.
I restarted again and from then i am not able to move any forward.
not even i am getting F11 or f8 (for safe mode).

Please try to help me.
i just lost my warranty this may 2005.