Boot works only sometimes (randomly)

[crawle]

Hey guys,

I've got a very, very strange problem. I had it in my old JaS Tiger to. I'll describe it:
When I boot, it appears my Windows Bootloader. I select "OSX86" and the Darwin Bootloader appears. I click double-enter (for start without any flags), and in 1 of 5 cases it works. It's loading the kexts, the Apple Screen appears and "great"!

But only in 1 of 5 cases (circa). In the other 4 cases, following siutations can be (also randomly!):

- the "earliest" problem: "Calibation failed with two attempts!" And a line above "We are going backwards ---> restarting timing" (see attachment)
- the "a little bit later" problem: When the kexts are loaded (and before the Apple Screen appears) it just reboots. Not very nice ...
- the "latest" problem: a kernel panic (picture follows) (sometimes a "double panic")

... and sometimes my USB-Wireless keyboard doesn't even work in the Windows Bootloader.

These three errors are not very beatiful. Sometimes I can boot at first go, sometimes I have to try it 5,6,7 times. I try it with flags like "cpus=1", "-v", "-f", "-x", but I think it's still randomly. That's not very mac-like ;-)

--

My second problem is, that I've installed an AC97 kext for my VIA-onboard sound - the sound works perfectly - but I can't change the volume at my PC. That's not very mac-like, too ;-) (problem was in JaS-Tiger, too)

I hope you can help me. First of all with the Boot-Problem ...

greetings,
-crawle