In case you haven't seen, service pack 1 has been released for .NET 2.0. I have included the links to it below. Enjoy.
2.0 SP1 x86 2.0 SP1 x64 2.0 SP1 IA64
A lot of issues were fixed in this service pack. For a list of what as fixed, take a look at: Problems that are fixed in the .NET Framework 2.0 Service Pack 1