Broken phpmyadmin
 

After an upgrade to Ubuntu 10.4 phpmyadmin no longer works.

Trying to access it returns a downloadable file.

Is there any way to fix this? Also, can reinstalling phpmyadmin corrupt any of the databases?

no any problem, you can update your phpmyadmin

if you want any help i am here ^^

So I can't get phpmyadmin to work.

I use ISPConfig3, I go through to the Sites, Click on databases. Now when I click the database icon it simply tries to download the php file.

Is there any way to reconfigure phpmyadmin?

When I reconfigured it, I got an error saying there were no virtual hosts.

try access
 

Try accessing phpmyadmin directly from web browser first.

http://www.domain.tld/phpmyadmin

or using public ip

http://x.x.x.x/phpmyadmin

If it's running ok then, it just ISPConfig setting that needs to be fix.
It's in System -> Interface Config -> Sites, there's phpmyadmin URL, change it according to your setting.

If accessing directly also result in downloading, I think that's web browser setting. (Maybe...)