I'm running 14.04 Trusty Tahr, and after a recent update my system has an issue (I want to be clear that I mess with settings a lot, so this may not be directly the fault of the update, but the problem didn't occur before then, and I don't recall making any other changes at the time).
The problem is that after loading up, Ubuntu will only open a few programs. After it has opened about 3-4, or after it has been running for a while, other programs will refuse to launch (even if all the current programs are closed. After closing they won't reopen.) Trying to launch them will sometimes result in a loading icon on the cursor, and other times, nothing. Strangely, this doesn't seem to affect synaptic package manager or nautilus, but does affect the terminal - which I have strong negative feelings about. It's a pain because I can't check to see if opening them from terminal will work.
I can switch programs by restarting my computer, but obviously this isn't an ideal solution. I should also mention I have a dual-boot, in case this has to do with memory.
Is this a known problem? Are other people experiencing it now?