There are 2 places I would suggest looking at to start.

1) Do you have anti-virus software running in the background, in 'auto-protect' mode? With accounting software that utilize multiple data files, performance can degrade quite severely when programs such as Norton Anti-Virus are checking everything. You may be able to exclude checking the program and data directories, yet keep it running for other places.

2) What sort of network connection do you have? If you've got 10Mb hubs and cards, that might not be enough based on the amount of data transfer required for your system. We would recommend 100Mb hubs/cards if possible.

Adagio Time & Billing on it's own will not hog resources to the point where other applications cannot run efficiently. Most likely it in combination with something else where the loss of resources is occuring.

Regards,