I've been trying to install ISPConfig for over a few days now, and run into the same problem as desribed above. I tried a lot concerning the hardware issues mentioned. Changed harddrive, tried setups wit all different combinations of 2x 256 MB dimms, tried Ubunto as well as Suse10 and installed that both to the letter of the how-to.
The problem occurs each time in exactly the same time, always compiling OpenSSL. I tried the current version as well as the stable one. I only do not have a chance to try a completely different PC.
I think it's the best bet to give up now...
I think it is save