Sonic RecordNow Deluxe 7.21 problems

I have upgraded to SRnD 7.21 from Ver 7 Deluxe. Now I am getting an error “All your drives are disabled” and it wont start.
Nero 6.6, Instantcopy 8.0.3,Alcohol and blindwrite is burning normal.
Is there some conflict between the software?

Any help appreciated

Win XP Sp2
Nec ND 3500 DVD Burner
tdk 24x cd writer