From day 1 I have found Basecamp very slow to load, to the point where it is almost unusable. On my previous system it took just over 2.5 MINUTES to appear, and on my current high-spec system (3.2GHz 6-core, 32Gbyte RAM) it still takes just over a minute.
Well, I've analysed what Basecamp is doing, and it's try to work with two files that aren't present. It tries 50 or so time for each, goes off and does something else, and comes back and tries again - over and over again.
It would appear that these are NVIDIA-related files called petromod_nvidia_profile_identifier.ogl and aurora.dll
By creating empty files with these names in the Basecamp folder, the load time has gone from just over a minute to 1.1 seconds!