I've downloaded the latest stable kernel 2.6.15 from kernel.org, configured it and I am currently compiling it using make-kpkg (for Debian).
It's impressive (2.6.15). Has a lot more options than any kernel I've configured before! Looks quite exciting.
I have seen and enabled a couple of Kernel parameters regarding realtime/hardware clock access. I wonder if this would do the trick...
Nevertheless if it fails, it's a learning experience and I always have the earlier stock Debian kernel to fall back on!