Ok, this is the dumbest thing i ever encountered.

I installed a new SATA HDD. Everytime i start the PC i get either an Error 15 or and Error 17 from Grub. I'm not talking about a "GRUB Error 15: xxxxx", i'm talking about a "please wait... Error 15". So no grub menu gets loaded to give me my OS'es to boot!

Anyway, i used to solve that by doing a CTRL+ALT+DEL and it would work fine the second time. That is stupid and illogical!

Anyway, i started up the PC today and i couldn't make that damn Error 15 dissapear no mather how many restarts i tried. I booted a live-cd and re-installed grub but i got the same error over and over.

So i though of doing something illogical. I disconnected the new HDD and grub menu loaded fine. I shut down the PC, reconnected the HDD and the grub menu loaded perfectly again. WTF? That is stupid and doesn't make any sence.

Any ideas about this? I'm soo close to removing grub and re-using vista's boot loader. Now i'll have a headache all day long because of this crap

Hardware.
Change the IDE cable(s) - use (new) 80-conductor cable.

The only IDE HDD i have is the Windows drive... /boot/grub/menu.lst is not there. All my other HDD's are SATA's.

EDIT: ide hdd cable is a 80 conductor.

or, reflash a newer BIOS

I reckon it's still gotta be hardware. Start pulling bits out and checking; including the SATA cables.

I've even had one motherboard that wouldn't boot successfully until it had been on for 15 minutes - I put that down to a "dry joint".

Can be a bitch to track intermittent problems down.

Fixed.

I made a grub bootable cd thru stage2_eltorrito, booted that, did find /grub/menu.lst and found it as (hd2,3) instead of (hd3,3). My BIOS apparently sees it as hd2,3 while slack sees is as hd3,3. Ran root (hd2,3), setup (hd0) (MBR) and everything works fine now.

I'm glad for You