Non-syncing Blockchain

[allthatremains]

My bitcoin-qt has halted syncing and only displays:

"Catching up...
Downloaded 252450 of 269760 blocks of transaction history (93.58% done).
Last received block was generated 91 days ago."

I'm using version 0.7.1 and have completed a full blockchain download before, but for some reason, it's not completing this time. I have ample disk space and RAM for processing it. Does anyone have an idea on the cause of this hang-up?

Thanks!

[gmaxwell]

0.7.1 will not work reliably anymore, there are workarounds but you really should upgrade due to other vulnerabilities.