Severe hard drive performance issues
I installed Kubuntu on my HP dv9008tx only a couple of months ago. Everything was running really well, very fast and reliably. Now, very suddenly, everything seems to lock up all the time. It took 20 minutes to open Kate today and whenever I clicked a link in firefox, it hung for about 2 minutes.
The hard drive light goes crazy when this happens and everything locks up. The CPU load reports less than 5% usage and any open applications run relatively smoothly. This is driving me insane and I would really appreciate any advice.