JNJ-26481585 will be administered in a continuous regimen with 21-day treatment cycles. The dose of JNJ-26481585 will start low and will be increased during the study in groups of 2 to 6 patients. The dose each patient receives at study entry will not increase, but patients who receive drug at a later enrollment time may receive a higher dose. If a group of patients does not have severe side effects, the next group of patients will get a higher dose. The dose will increase until some patients have severe side effects. The dose will then be decreased to a dose level where severe side effects are observed in less than 1/3 of patients. Once a safe dose level has been determined an additional group of 12-24 patients will be treated.