[Plugin: qTranslate] [Cache problem] plugin not working

WordPress 3.0.1 + qTranslate 2.5.9.

Here’s the thing. After I activate the plugin all the admin pages (the dashboard) are blank. I checked the problem with Mozilla Firebug and i have … somewhere … a problem with an if .cache. If a remove (with ftp) the plugin everything is ok.

The thing is that I really need this plugin because it is the best one that fits my needs and it has a great functionality. I used it in the past, but never with wp 3.0.1.

It might be important to know that at first activation it worked and i had no problems with the Dashboard, but after I selected another language (in Dashboard menu button) it all disappeared.

Other plugins installed:
All in One SEO Pack 1.6.12.1
Contact Form 7 2.4.1
FaceBook Share (New) 1.9.2
Google Analytics Dashboard 1.0.6
Google XML Sitemaps 3.2.4
KB Advanced RSS Widget 2.8.02
Limit Posts 1.1
NextGEN Gallery 1.6.2
Really Simple CAPTCHA 1.2
Theme My Login 5.1.6
TweetMeme Retweet Button 1.9
WP-reCAPTCHA 2.9.8.2

thanks!