I'm having trouble with Fluxbox on my home Arch Linux box. Over the last couple weeks, it appears to be freezing constantly, forcing a hard reboot of the machine. Also, while running, I see strange artifacts in the display (e.g. I will see a duplicate image of part of a browser window in another area of the desktop).

I've switched over for the moment to IceWM, and these problems have disappeared. I've run memtest in case the memory is borked and come up empty. If IceWM keeps working, it looks like it's some sort of software issue.

The video hardware is an Nvidia GeForce GTX 560 connected to a 30" Dell monitor (3007WFP IIRC). The computer system is a Core i7 2600K w/ 8 GB of RAM.

I'm a bit stumped as to why Fluxbox has suddenly become so flaky. Has anyone else seen anything like this? I would usually suspect hardware, but as mentioned above, IceWM seems very stable.

I have no idea what's causing the problem, but I'd try the following:
1. Set up a new user and see if the new user experiences the same problems with fluxbox. If not, I'd guess the fluxbox configuration for your normal user is borked.
2. If the above yields te same problem, I'd delete, then reinstall fluxbox.
3. If the problem persists, it would prove I have no idea what's causing the problem and I don't know of any work-arounds.

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Of course, as soon as I post this, IceWM starts flaking out after being stable for a week. I'm back to "dodgy hardware" as the best explanation. I'll fire up memtest and a couple of other diagnostic tools again.