I'd call Virtue, they have very good customer service.
When you call them have the loader in hand so they can walk you thru some possible solutions.
40-14 Oser Ave.
Hauppauge, NY 11788
phone: (631) 617-5346
fax: (631) 619-5349
Going back to a Rotor isnt a good option, you already have the better loader, just let them figure out what the issue is.