Multiple design users....

I have 4 nos of free users in my project....but i cannot login to design module at more than one computer in same time....
I don't know how to fix it, so multiple users can be logged in the project....



Advance thanks to your help....

 

Thankyou sir....I have changed all db extracts to multiwtite except dictionary.....now it is working....hoping it will work further as well...

Thankyou once again sir...