DragonForce have been forced to pull-out of the Kerrang! Week Of Rock due to the "personal circumstances" of one of the band members.The band were due to be headlining London's HMV Forum on July 29."It is with great regret we have to cancel the show on July 29 due to unforeseen personal circumstances of one of the band," a spokesperson for the band told K!. "This is obviously not something the band have decided lightly but we see no option. And no, we don't want to be more specific, its kinda personal, so rest assured, there is no option."The event's promoters have urged fans to seek refunds at the point of purchase.