jstine,
So does MU VK have a different verizon provisioning file? If you could cab it, I will test it to see if it resolves the issue I had with Calk's.
Programs installed: tjElite Arcsoft MMS (your provisoning); amazegps; Bing (the old version that works with GPS); BsB tweaks (just started using this primarily to enable rotation); Caliban opera (9.7); Gudensoft Golf GPS; HVH3 WeatherCityEditor v3.4; Koushik Dutta Klazon (alarm); Pocket Uno; skyfire browser; netdrg tCPMP v2.0; Tellme; xtrakt; TW med blue numbers.
The only time I've noticed explorer freezing since you switched to QM is once when I closed all programs the screen froze but when I hit the hard menu key and QM said the only thing still open was explorer.
I haven't really dug into the factors that may have caused a lockup (browsing SD card, etc.) so unless it becomes a big issue with everyone don't worry about it.
The other thing I've noticed about QM is that it usually takes two taps to switch between programs. I tap the program I want to go to , it starts going (I think the apps name acutally appears on the taskbar for a split second) and then goes back to the screen I was on. I do it again and no problem??? I think it only worked the first time once (I remember it because it was unusual LOL) I like it better than arcswitch though. (I know, I'm so fickle!) Don't know if anyone else has this issue?
Edit: OK, now I really read your post. File explorer hasn't froze up for a long time while browsing. Last time I think was with v3.x of your rom. The latest issue with file explorer was it would freeze the phone when using arcswitch to close it. And this was pretty consistent. As stated above, not really a problem with QM.