I have to agree with Datdude, EpF. I use the Back/Forward extensively so I was concerned to read that it's functionality may have changed. But, I just tested it fairly thoroughly and it worked just as I expected, at least when used via icons on toolbar (I didn't test using hotkeys with my remote, but I could).
Back took me back through a variety of selections on the tree accurately, but paid no regard to my current "view mode" (when cycled either by F11 or by playing tracks). Forward did so in reverse just as it should.
Can you describe in more detail exactly what you are doing to reproduce the Back/Forward mix-up, and try to better identify the bad sequence that MC is taking you on?
On another completely separate topic... Sorry to hear about the slow machine. What are you running?
I'm actually having some trouble with the voltage regulator on my Gigabyte nForce3 board right now, much to my dismay (the 3.3v rail is failing it's self-test and isn't providing stable power). I may have to take the leap to a PCI-E video card and a new motherboard sooner than I'd hoped. I was hoping to wait for the new ATI RD580 chipset-based boards to emerge to see how they compare to the older nForce4 boards. If this thing fails it's either that, or I dig out my old P3-933Mhz 440BX board, which would be quite a switch from a nice A64-3200+.