Shares of Faro Technologies ( FARO) were among technology's losers Thursday, tumbling 18% after the software maker delayed the filing of its annual report because of "suspicious payments" associated with foreign sales activities in China. "Faro is working diligently to complete its internal investigation and to file its annual report on form 10-K as soon as possible," the company said. "Improper payments or other violations of law will not be tolerated and Faro intends to cooperate with the DOJ and SEC so this matter can be resolved as quickly as possible." The company said it voluntarily notified both the Securities and Exchange Commission and the Department of Justice about its internal investigation into the possible financial irregularities. As a result of the investigation, the company said it would be "prudent" to withdraw its previous financial guidance for 2006. In February, Faro projected sales growth of 20% to 25% and predicted that earnings would represent about 6% to 10% of sales. Faro's shares were trading down $2.96 to $13.45. Shares of Pacific Internet ( PCNTF) rose 6% after the company said it hired a financial adviser to help it explore options. The move comes about two weeks after the company said MediaRing, a voice-over-Internet-protocol services company, planned to make an unsolicited acquisition offer of $8.25 a share in cash. "The board of directors of PacNet believes that in addition to evaluating the preconditional voluntary general offer by MediaRing, it is in the best interests of all shareholders for the company to also explore other options to maximize shareholder value," Pacific Internet said in a statement Thursday morning. The company hired BNP Paribas Peregrine as its adviser. Pacific Internet said it expects to make further announcements by May 31, after it evaluates BNP's recommendations. Shares were trading up 51 cents to $8.60.