[squeak-dev] Continued... problems regarding to SUnit & Debug

Well, in fact I've found several other really annoying problems:

1. Debug freezes when you click at any entry.
2. TestRunner freezes when you click at any error entry.
3. Unable to update SUnit (freezes at Snapshotting Methods).
4. Unable to install MSE (tries to read past end of file and complains about UTF-8 characters).
5. If I install MySQL drivers and save image squeak gets frozen. The same with other packages.

I use the UniverseBrowser basic/enhanced to update/upgrade the system.
I use the basic image and the sq3...dev...net image

squeak command line is:
$ squeak --encoding UTF-8 --textenc UTF-8 squeak.image > /dev/null 2> /dev/null &

I installed the spanish.cs (otherwise things get pretty messed with keyboard inputs).

As I am unable to use the debugging capabilities, I just cannot figure out what's going on. Should I revert to Squeak3.9 ???