I installed the Beta patch and tried to compile our SDR project; a non-trivial affair with 19 source files and about 11K lines of code. I got just under a bazillion errors from the linker. After I installed new copies of the Time and SD libraries, things are back to normal. I'm sorry I didn't save the error messages to a file, but there were so many I don't know how useful that would have been. Looking at the list, however, suggested problems on my system with those two libraries and reinstalling them fixed whatever issue it was. If anyone else is having issues with the Beta, perhaps this note will help point them in the right direction.