Hi Guys,
just after some help please. i downloaded hyp wallet on new machine last night, it was synching fine so i sent some HYP from polo to the new address, then fell asleep. When i woke up my machine had turned itself off and when i reboot and try and run hyperstake-qt it gives me an error saying "error loading blkindex.dat" and the application closes. does anyone have any ideas what may be wrong? i know i was bit stupid to send my coins before it had fully synched, will there be any way to recover them?
thanks in advance for any assistance offered.

Hi and welcome!
I never experienced this. I'd say: delete all the content of your %Appdata%HyperStake folder (assuming you're on Windows, ~/.HyperStake if you are on Mac or Linux) EXCEPT the wallet and maybe .conf/.config). Then restart and wait for resync (and cancel the autosleep feature on your machine at least until sync is complete).
I guess this was some kind of data corruption at OS level (power out, maybe?), not something related to HYP itself.
Thanks David - i deleted everything apart from wallet.dat, and now the wallet runs fine and is synching again