Classic "IO error" whn uploading imagens

hi, everybody at the WP HQ

yesterday [6.fev.2011], after having installed WP at hectorlima.com i noticed i wasn’t able to upload image neither there nor to my other website located at gomademascar.net.

the images won’t go and i get the famous IO “error” message. both blogs run from a paid server. i googled the problem and so far i’ve tried using the Browser Uploader but it only lets me send an image at a time.

i’ve also tried uninstalling ad re-installing Adobe Flash Player and checking the path for uploaed files. everything is as it should be. could the new install? [as far as i know they’re sharing server space.]

what can I do to fix that?

thanks in advance?