Research In Motion has recalled 1,000 PlayBook tablets after they were found to have shipped with a faulty build of the operating system. The problems could affect the loading of software at initial set-up, the company said.

The enterprise-focused PlayBook was made available by RIM in the US and Canada in April for a starting price of $500 for a version with 16GB of storage. The majority of the affected devices are still in the distribution channel and haven't reached customers, the company said. RIM is working to replace them.

If a customer received a PlayBook that is unable to properly load software upon initial set-up, RIM will assist them in fixing the problem, the statement said.

Engadget reported on Saturday that nearly 1,000 faulty tablets were shipped to office products retailer Staples, and were being recalled by RIM. The report cited an inside source.