Drupal 7.x

Hello,
I'm trying to set an agregator of RSS feeds, but i keep getting that error message, with no expplanation...
The feed i'm trying to agregate are twitters, Facebook and YouTube from my compagny.

Can anyone help? When i check the url of these feeds in my navigator they all work fine.

thanks in advance

I just changed the favicon setting in the bartik theme and got this message

"PDOException: SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) in lock_may_be_available() (line 165 of /home/nxkqmxn123/domains/xn--42ci9aet2dd7esc1a2ag.com/public_html/includes/lock.inc)."

I cannot do anything now. How can I correct this error?...

Please HELP!!!!

T T

Could someone me tell how to add pre-header region to Bartik?
To be more specific, I use Bartik sub-theme, the only addition to my subtheme comparing to Bartik is local.css to format Views and Node output.

If I add a url alias as a path for a menu item, it will be stored as node ID, but when I switch languages, the url alias is gone. Is there any way around this?

Thanks in advance!

I just did a new Drupal install and for some reason it defaulted to having row weights visible for every Admin page that uses them (Blocks, managing fields in a Content Type, etc.).

No matter what theme I use for the Admin panel I can not find a way to enable dragging and dropping and disabling the row weights. The drag 'n drop cursor does come up when I hover over a row, but I am unable to move the row around. Is there a way to change this setting manually somewhere?

Behavior is the same in all web browsers, JavaScript is turned on, etc.

I have had a drupal 7 site up and running since January but now, for no apparent reason (as far as I can ascertain, no one has interfered with anything) I cannot get the site to open - no error message, just a blank page. The following is the error logging message:
for me fix was installation

[01-Apr-2011 11:12:18] PHP Fatal error: Undefined class constant 'MYSQL_ATTR_USE_BUFFERED_QUERY' in
/home/katherin/public_html/includes/database/mysql/database.inc on line 43

Any suggestions what to do. I am a newbie on a steep learning curve!