Issue field size in Activities, Milestone, Projects, etc... screens

Hello,

We are facing what I call a "display issue" with some fields in Activities or Milestones screens for exemple..
Everytime I open an item, many fields are smaller than normal, and description textbox appears with some HTML code inside.

See picture below, I think it's self explanatory.


We didn't change anything before issue appeared, and since then we upgraded to 6.4.4, but pb remains the same.

I tried to run demo app from Projeqtor Website, to check whether it could a pb with my computer. But then display is OK.

So if anybody has an idea on the way to solve this issue, it would be great.
Thx
Alain

Nope
We only restarted the DB, this was the first reboot since the install' we performed 1 month ago.
And I couldn't guarrantee that this issue occured just after this reboot.

It seems ok :
$paramDbType='mysql';